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49 lines
1.7 KiB
49 lines
1.7 KiB
/*
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Copyright (c) 2012-2013 Martin Sustrik All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom
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the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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IN THE SOFTWARE.
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*/
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#include "port.h"
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#include "../../utils/err.h"
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int nn_port_resolve (const char *port, size_t portlen)
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{
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int res;
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size_t i;
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res = 0;
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for (i = 0; i != portlen; ++i) {
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if (port [i] < '0' || port [i] > '9')
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return -EINVAL;
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res *= 10;
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res += port [i] - '0';
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if (res > 0xffff)
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return -EINVAL;
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}
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/* Port 0 has special meaning (assign an ephemeral port to the socket),
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thus it is illegal to use it in the connection string. */
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if (res == 0)
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return -EINVAL;
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return res;
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}
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